Not sure any of them are great figures.
My brother and I wound up with six of the original At-At Commander, because our parents got some on clearance and gave them to us for birthday or X-mas. We had one AT-AT, and not having seen ESB enough times to remember he was a specific character (or just not caring), we used them as imperial troops (turns out, not that inaccurate, since this is an Imperial officer's field attire). The darn paint on their noses would rub off.
The 80's one's proportions do seem goofy, tiny helmet being the main thing. I think I like his belt more than the actual movie accurate one. What is that odd decor/symbol in the middle of the movie version, anyway? "Check out my belt buckle!"
The recent versions look more like the movie, that is a person in a dress uniform with plastic junk armor on them. It's not statisfying from a fantasy perspective to me. The POTF2 version is more comic booky (poured into his uniform like POTF2 figures were), in a sense more the true remake of the vintage At-At Commander.
The new "vintage" one's helmet seems off compared to the movie still. And the wide sleeves are wrong. If you feel that isn't supposed to be Veers (going by the face, it's not really) , then you can rationalize it. I'll probably get him since I never got the POTF2 or Saga versions. I wouldn't mind it if they did a retro repaint in dark grey.